The company behind Proton VPN, Proton Mail and Proton Pass, has released an open-source AI chatbot that it says isn't trained on user data.

Proton isn’t involving major AI providers at all. Instead, Proton’s Lumo AI uses a mix of open-source models that the company runs on its own servers. While conversations aren’t end-to-end encrypted, Proton says it doesn’t keep logs of users’ chats, and conversations are decrypted only on users’ devices.

Proton today launched Lumo, an AI assistant that promises to keep your conversations completely private. Best known for its encrypted Mail and